Adams Rite S254-08R28-603MP Se...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$19.55
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Adams Rite S254-08R28-603MP Set Screw for 4430 Series Mechanical Locks

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Model: S254-08R28-603MP

In Stock (leaves warehouse same day if ordered before 3pm ET)

$19.55
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Adams Rite S254-08R28-603MP Set Screw for 4430 Series Mechanical Locks

The Adams Rite S254-08R28-603MP is a genuine OEM replacement set screw designed specifically for compatibility with the Adams Rite 4430 Series mechanical lock family. As a commercial-grade installation accessory, this screw pack ensures a secure, manufacturer-approved fit for maintaining or completing 4430 Series lock assemblies. Sourced directly as an Adams Rite part, it delivers the precise tolerances and material integrity required for reliable performance in professional door hardware applications.

Key Features

  • Genuine Adams Rite Component: Authentic OEM part engineered to exact Adams Rite specifications for reliable integration with 4430 Series hardware.
  • 4430 Series Compatibility: Designed specifically for use with the Adams Rite 4430 Series mechanical lock line, ensuring proper fit and function.
  • Commercial-Grade Quality: Rated for commercial applications, providing the durability and precision required in high-demand door hardware environments.
  • Installation Accessory: Classified as an installation accessory within the Adams Rite parts and accessories program, ideal for new installations and field replacements.
  • Screw Pack Format: Supplied as a screw pack for convenient handling and installation on the job site.
  • Model Identification: Part model S254-08R28-603MP for straightforward ordering and parts management.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Screw Pack
  • Parts and Accessories Type: Installation Accessories
  • Commercial/Residential: Commercial
  • Product Model: S254-08R28-603MP
  • Features: Adams Rite Parts

Typical Applications

  • Commercial Office Buildings
  • Retail Establishments
  • Educational Facilities
  • Healthcare Institutions
  • Industrial and Warehouse Facilities
  • Government and Municipal Buildings
  • Multi-Tenant Residential Properties

Why Adams Rite 4430 Series?

Adams Rite mechanical lock components are manufactured to precise commercial-grade tolerances, ensuring that every replacement part integrates seamlessly with the original hardware assembly. The S254-08R28-603MP set screw upholds the same standards as the broader 4430 Series line, supporting dependable, long-term performance in demanding commercial door hardware installations.

Manufacturer Resources

Product Specs

Department:
Door Hardware
Product Category:
Mechanical Locks
Product Group:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Screw Pack
Parts and Accessories Type:
Installation Accessories
Commercial/Residential:
Commercial
Product Model:
S254-08R28-603MP
Features:
Adams Rite Parts

Adams Rite S254-08R28-603MP – Frequently Asked Questions

1) What lock does the Adams Rite S254-08R28-603MP set screw fit?
It's the OEM set screw for the Adams Rite 4430 Series mechanical locks. Adams Rite builds it to the 4430 Series assembly, so it's the part to order when you're completing a new 4430 install or replacing a screw that walked off during service. Don't substitute it into other Adams Rite series lines.
2) Can a Corbin Russwin ML2000 screw pack be used in place of the Adams Rite S254-08R28-603MP set screw on a 4430 Series lock?
No. The S254-08R28-603MP is a genuine Adams Rite set screw made specifically for the Adams Rite 4430 Series mechanical lock family, so it matches the thread and length that assembly was built around. The Corbin Russwin screw packs, such as the 433F77 for ML2000 M and P escutcheons and the 429F31 for the N escutcheon, are made for the Corbin Russwin ML2000 mortise line and are sized to that lock's escutcheon prep. They are both screw packs, but they are not interchangeable across the two lock families - order the Adams Rite part for a 4430 repair.
3) If I am standardizing fasteners across a building with both Adams Rite and Corbin Russwin locks, can I stock one screw pack?
No - plan on stocking by lock family. Adams Rite 4430 Series mechanical locks take the Adams Rite S254-08R28-603MP set screw, offered in a 603 zinc plated finish. Corbin Russwin ML2000 mortise locks take their own Grade 1 packs, the 429F31 for the N escutcheon and the 433F77 for M and P escutcheons, plus individual fasteners like the 425F86-8 flat screw. Keeping one pack per lock line on the shelf avoids a service call where the thread does not match.
4) I need a single loose screw, not a pack - what are my options?
The Adams Rite S254-08R28-603MP is supplied as a screw pack rather than a single loose fastener. If you are after an individual screw for a Corbin Russwin ML2000, the 425F86-8 is a single flat screw in 8-32 x 3/8 inch, and the 206F57-8 is a combo screw for the ML2000 strike. Those are ML2000 parts, so they apply to that lock rather than to an Adams Rite 4430.
5) Is this sold as a single screw or as a pack?
It ships as a screw pack, which is how Adams Rite supplies this item for field service and new installs. That format suits a locksmith or property maintenance crew keeping spares on the truck for a building standardized on 4430 Series locks.
6) My 4430 lock's strike is loose - is the S254-08R28-603MP the right screw for that?
The S254-08R28-603MP is a set screw, which is the fastener that secures a lock component in position rather than a strike mounting screw. If the problem is at the strike, that is a different fastener - on the Corbin Russwin ML2000 side, for example, the strike screw is a separate part, the 206F57-8 combo screw. Confirm which fastener has backed out before ordering, since a set screw and a strike screw are not substitutes for one another.
How fast can I get the Adams Rite S254-08R28-603MP delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Adams Rite S254-08R28-603MP come with a warranty?
Absolutely. The Adams Rite S254-08R28-603MP is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Adams Rite S254-08R28-603MP?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Adams Rite S254-08R28-603MP from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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